The SGV510 series are recognized the world over as one of the top performing super tuners on the market. These feature an 18:1 gear ratio. They have evolved through improvement without any compromises along the way. The come equipped with a considerable amount of high-technology as a standard. With the improvement of precision fitting gears which give a marvelous touch on playing they have gained a considerable reputation and are trusted as the No.1 machine head by many musicians all over the world. These are three-on-a-side. Mounting hardware included.

Kluson type machine heads are criticized for not having the same smooth performance, efficiency and durability that sealed gear tuners have. The SD series solves these problems by combining "Rock-solid" technology and the post collar or: "Self-Center Guide", found on enclosed gears in the base plate of the gear allowing the post to perfectly align itself with the bushing which attaches the gear to the headstock. The SD series uses a torque balancer to ensure steady rotation of the tuner button giving high quality sound performance as well as great functionality.

SGS is the smaller model of SG510 series and use a 18:1 gear ratio. The SG510 series has evolved through improvement without compromise at any stage and come equipped with a considerable application of high-technology as standard. With the improvement of precision fitting gears, marvelous touch on playing—they have gained a considerable reputation and are trusted as the No.1 machine head by many musicians all over the world. Mounting hardware included.